Yumeko Aizome

The evolving relationships of two young women as fate takes them down different roads. Sunako and Dora, two schoolgirls attending a Christian school in the East-meets-West port city of Yokohama, pledge their eternal friendship to each other, but their lives begin a long spiral downward and apart after they meet westernized gangster Henry. (YouTube)

This is a story about a gangster and his girl friend who used to be a good girl.

After Japan's loss in the war, the wealthy, cultured, liberal Anjo family have to give up their mansion and their way of life. They hold one last ball at the house before leaving. (imdb)

A teenager flirts with the girl next door, big sister of whom gets separated from her husband and moves back to her parents' house.

A story about a little boy who, after his widowed mother decides to remarry, is shuffled about, from relative to relative.